Quick Answer
Yakult green tea (“duo duo lü” in Taiwan) is green tea + a probiotic lactic acid drink, sweet-tart and refreshing. The name comes from the Japanese brand; according to English Wikipedia, this sweetened probiotic milk drink fermented with the Lacticaseibacillus casei Shirota strain was first produced by Minoru Shirota in Japan in 1935 and has been sold in Taiwan since 1964. Shops make it two ways: (1) adding a commercial lactic acid drink, or (2) using a yogurt-flavored syrup, which is shelf-stable and easy to portion. The base is usually jasmine green tea.
What’s in Yakult Green Tea
| Ingredient | Details |
|---|---|
| Green tea | Usually jasmine green tea; see What Is Jasmine Green Tea? |
| Lactic acid source | Commercial lactic acid drink, or yogurt-flavored syrup |
| Sugar | Adjust by sweetness |
| Ice | Adjust by ice level |
Two Methods Compared
| Comparison | Lactic acid drink | Yogurt-flavored syrup |
|---|---|---|
| Flavor | The drink’s own flavor | Depends on the syrup formula |
| Storage | Per product label (usually refrigerated) | Per pack; ambient when unopened |
| Portion control | By the bottle | Weighable, easy to control |
| Labeling | Per the product’s ingredients | Per the syrup’s ingredients |
Note: using a brand name to name a drink may raise trademark issues; many shops use names such as “lactic green tea” instead, so assess your naming.
Shop Method (Yogurt-Flavored Syrup)
- Pour green tea into the shaker (about 150ml for 500ml cups, 200ml for 700ml).
- Weigh in yogurt-flavored syrup by sweetness.
- Fill with ice, cap and shake.
- Pour; add toppings such as nata de coco or crystal boba if you like.
Tang Sugar’s fruit syrup chart (500ml: 30g light, 45g half, 60g regular, 75g extra; 700ml: 40g, 65g, 80g, 100g) applies mainly to fruit-flavored syrups; confirm yogurt syrup amounts by testing in store. See the Fruit Syrup Dosage Guide.
Spin-Off Drinks
- Yakult lemon green tea: add lemon syrup.
- Yakult passion fruit green tea: add passion fruit syrup; see How to Make Passion Fruit Green Tea.
- With toppings: yogurt popping boba, nata de coco; see What Is Nata de Coco?
Ingredients from Tang Sugar
Tang Sugar supplies yogurt-flavored syrup (2.5kg, 5kg), yogurt popping boba, yogurt powder, and teas such as jasmine green tea and high-mountain jasmine green tea. Request samples.
Products in this article
All 12 Syrups →
FAQ
What is Yakult green tea?
A bubble tea drink of green tea with a lactic acid drink or yogurt-flavored syrup, sweet-tart and refreshing.
What tea is used for Yakult green tea?
Usually green tea, most often jasmine green tea.
Does Yakult green tea have to use a lactic acid drink?
No. Shops can use a yogurt-flavored syrup instead, which is shelf-stable and easy to portion.
When did Yakult go on sale in Taiwan?
According to English Wikipedia, Yakult was first produced in Japan in 1935 and has been sold in Taiwan since 1964.
What is the ratio for Yakult green tea?
The shop method here starts from about 150ml of green tea for 500ml cups and 200ml for 700ml, then adds the lactic acid drink and syrup and shakes. Fix the exact amounts by testing with your products and target sweetness, and write them into the SOP.
Further Reading
- How to Make Lemon Green Tea
- What Is Jasmine Green Tea?
- How to Make Fruit Tea
- What Is a Yogurt Drink?
- How to Make Cold Brew Tea
- How to Make Winter Melon Lemonade
Sources
- Wikipedia: Yakult
- Tang Sugar product data: Lemon Syrup product page (preparation steps)
- Tang Sugar product list (March 2026 edition)
